How do I change the font size in a UIPickerView in Swift?

Update Swift 4.2

I managed to use the code below:

func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
    var pickerLabel: UILabel? = (view as? UILabel)
    if pickerLabel == nil {
        pickerLabel = UILabel()
        pickerLabel?.font = UIFont(name: "Your Font Name", size: 25)
        pickerLabel?.textAlignment = .center
    }
    pickerLabel?.text = <Data Array>[component][row]
    pickerLabel?.textColor = UIColor(named: "Your Color Name")

    return pickerLabel!
}

Hopefully help you

Try this for Swift 3.x:

Fill your Font name, Color, Size & Data Array with appropriate values.

func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
    var pickerLabel: UILabel? = (view as? UILabel)
    if pickerLabel == nil {
        pickerLabel = UILabel()
        pickerLabel?.font = UIFont(name: "<Your Font Name>", size: <Font Size>)
        pickerLabel?.textAlignment = .center
    }
    pickerLabel?.text = <Data Array>[row]
    pickerLabel?.textColor = UIColor.blue

    return pickerLabel!
}

EDIT:

For Multiple components, you can do something like this:

if component == 0 {
     var label: UILabel? = (view as? UILabel)
     label.text = <Your Arr>[row]
     return label
}else {
     return anotherLabel
}

Output:

Hope it helps!!!